From: Jason Self Date: Sat, 19 Sep 2015 04:19:26 +0000 (-0700) Subject: zilasm/main: Construct output filename from input filename adding .dat X-Git-Url: https://jxself.org/git/?a=commitdiff_plain;h=ae5b2223ee645045d847073f3c9b173aea52d1ed;p=zilutils.git zilasm/main: Construct output filename from input filename adding .dat --- diff --git a/zilasm/main.c b/zilasm/main.c index 811a6df..bbc5a93 100644 --- a/zilasm/main.c +++ b/zilasm/main.c @@ -142,6 +142,23 @@ void parse_zserial(void) wrong_arg("Wrong zserial value %s, must be 6 ascii characters\n", optarg); } +void new_file_suffix(char *result, size_t maxlen, const char *src, const char *newsuffix) +{ + strncpy(result, src, maxlen); + char *p = strrchr(result, '.'); + if (p && strchr(p, '/')) + p = NULL; + if (p) + { + strncpy(p, newsuffix, maxlen - (p - result)); + } + else + { + strncat(result, newsuffix, maxlen); + } + result[maxlen] = 0; +} + int main(int argc, char *argv[], char *envp[]) { const char *output_file = NULL; @@ -176,13 +193,27 @@ int main(int argc, char *argv[], char *envp[]) } } + int first_input_file = optind; + if (first_input_file >= argc) + wrong_arg("Missing input file\n"); + + if (!output_file) + { + const char suffix[] = ".dat"; + const char *input_file = argv[first_input_file]; + int n = strlen(input_file) + strlen(suffix); + char *ofile = malloc(n); /* todo!!! check for NULL. free. */ + new_file_suffix(ofile, n, input_file, suffix); + output_file = ofile; + } + // TODO: Everything :) printf("Input files:\n"); for (i = optind; i < argc; i++) printf("\t%s\n", argv[i]); - printf("Output file: %s\n\n", output_file ? output_file : "MISSING"); + printf("Output file: %s\n\n", output_file); printf("Config:\n" "- ZVersion: %d\n"